Solenoid valve 1.5 inch ac24v

Here's what you need to immediately understand about one-and-a-half-inch solenoids for 24 volts - many people think that it's just a faucet that opens with current. But in reality, the material of the housing is important, and the coil, which should not burn during power surges in the field, and the fact that 1.5 inches is not really 40 mm everywhere; it can be either 38 or 41, depending on what standard it was made according to. We at Shandong Linyao Intelligent Agriculture Technology LLC constantly encounter such things, especially in projectsintegration of water and fertilizers— where automation of irrigation requires accurate flow and reliability.

Why AC24V

24 volts AC is not just that. In agricultural projects, especially on large areas, pulling 220V is often risky: moisture, length of lines, personnel safety. 24V is already a safe voltage, but at the same time sufficient to confidently work with1.5" solenoid valve, which requires a decent amount of effort to open. Plus, many of our controllers that we supply forremote valve control, initially designed for 24V AC.

But here is a nuance that is not always obvious: if the line is long, the voltage drop may be such that the valve will not open or will hum. We encountered this in one of the projects near Tambov - we installed 24V valves, and when they started up they buzzed like bumblebees. It turned out that the cable with a cross-section of 1.5 mm2 was too thin for a length of 200 meters. I had to shift it to 2.5 mm2 and install intermediate relays. This is a common design mistake.smart agricultural parks— saving on cable comes at a cost.

Another point is the quality of the tension itself. In rural areas, there are drawdowns, and if the power supply is unstabilized, the valve may operate unstable. In most projects we now use sources with power reserves and stabilization, especially forhigh and low voltage equipmentto avoid such surprises.

Installation and connection features

Installing a one and a half inch solenoid has its own subtleties. Firstly, the direction of flow - the arrow on the body should be strictly in the direction of the water. It seems obvious, but how many times have I seen installers install it anyhow, and then wonder why the valve doesn’t hold pressure. Particularly critical in systemswater filtrationwhere backflow can clog the filter elements.

Secondly, the installation position. Some manufacturers allow any installation, but from experience, it is better to install the coil up or horizontally - this way there is less risk of moisture accumulation inside and corrosion. In one of our projects in the Stavropol Territory, valves were installed with the coil facing down, and after the winter some of them failed - condensate accumulated and the coil closed. We had to change it, and now we emphasize this point separately in the instructions for installation teams.

Connecting wires - there is also something to consider here. The terminals must be well tightened, but without fanaticism, so as not to strip the thread. And be sure to use waterproof connectors or sealed couplings, especially if the valve is located in the fields. For such cases, we at Shandong Linyao LLC supply kits with IP67 connectors, this greatly simplifies life during maintenance.

Typical faults and how to avoid them

The most common problem is coil failure. Usually this is either overheating or moisture ingress. Overheating often occurs when the valve is constantly energized when closed - the coil heats up and over time the insulation is destroyed. In systemsautomatic equipmentWe recommend using pulse valves or installing an additional relay to relieve voltage after opening/closing.

Another problem is core jamming. Usually due to contaminants in the water. In projectshigh quality agricultural fieldswhere water is taken from open sources, be sure to install pre-filters, even if there is a mesh in the valve - it is too fine to retain all the suspended matter. Once they didn’t install it - after six months, a third of the valves stopped opening, I had to wash and clean it, and this is a simple irrigation system during the peak season.

There are also mechanical damages - for example, when water freezes in the valve. If the system is not drained for the winter, the ice breaks the housing. Now, in projects for regions with cold winters, we always install drainage valves and automatic drainage, or use frost-resistant models, but they are more expensive. This is the case when savings at the design stage turn into replacement costs.

Compatibility with automation systems

In modern projectsintelligent water and fertilizer integration equipmentThe solenoid valve is not an independent device, but part of the system. It is important that it works correctly with the controllers we use. For example, some cheap valves have high inrush current, which can destroy the controller output. We test all valves before installation in projects - we measure currents and check response times.

Another point is feedback. In advanced systems, you want to know not only that the opening command was given, but also that the valve actually opened. For this, there are models with limit switches or even with flow sensors. But they are, of course, more expensive. In projects where reliability is critical, for example, in greenhouse complexes, we install just these. Although, to be honest, customers often save money and refuse this option, and then wonder why the system does not work as it should.

Integration with SCADA systems - here it is important that the valve has standard interfaces or can operate through intermediate relays. We at Shandong Lingyao LLC develop our solutions forremote valve control, which allow us to integrate almost any valves, but we still prefer to work with proven models, where we know all the nuances.

Practical cases from our projects

Last year we did a projectsmart agricultural parksin the Rostov region - there was a task to automate irrigation on an area of 50 hectares. Just usedsolenoid valves 1.5 inch AC24V- about 200 pieces. The main problem was that the pressure in the line varied greatly - from 2 to 6 atmospheres. We had to install pressure reducers in front of each valve, otherwise they would quickly fail due to water hammer.

Another case - in Kazakhstan, the projecthigh quality agricultural fields. The water there had a high salt content, and ordinary brass valves began to corrode after six months. We switched to stainless steel, although it is more expensive, but it is reliable. This is important to consider when choosing a material for specific operating conditions.

Here is a positive example: in the Krasnodar region they installed a system based on our controllers and the same valves. It has been working for three years without any complaints. The secret is high-quality installation, proper design and regular maintenance. Once a season we check the coils, clean the filters, lubricate the seals - and everything works like clockwork. This confirms that even simplesolenoid valvecan be a reliable link in the system if you approach the matter wisely.

Supplier selection and quality control

There is now a problem with the choice of valves - the market is flooded with cheap Chinese ones, which may or may not work. We at Shandong Linyao Intelligent Agriculture Technology LLC went through this - we took a batch from an unverified supplier, and half of the valves had unstable coil resistance, which led to malfunctions. Now we work only with those who provide real technical specifications and allow testing before purchase.

Quality control in production is a separate issue. Good manufacturers test each valve for leaks and functionality before shipping. When we visit partner factories, we always look at this process. If the testing is formal, we immediately look for another supplier. After all, the operation of the entire system depends on the reliability of each valve.design and construction of hydraulic structures.

Certification is also important - especially for projects where compliance with Russian standards is required. We have a department in our company that monitors all changes in the regulatory framework so that the supplied equipment exactly meets customer requirements. This is especially critical for government tenders and large agricultural holdings.